male ...female ..hermaphrodite ??

I been re-using same seeds for .... o a year now. they a a breeding mix of ak47 , sour diesel, and about 30 other reggy seeds. the past 2 grows every plant is a female then about 80% through budding I always notice a few male parts starting to show at the base of a few buds.

Q. is this genetics or am I just stressing them out to much?

Could be both need to know if its outside or indoors and what nutes you use and what lights and the temps and ph and all that.

http://www.htgsupply.com/products/gh-flora-series-liquid-concentrate
and I actualy use about 1/3 dosage
600watt bloom
my ph is a steady 5.8-6.2
I run lights at night to get around power high cost times.
temp at night is around 76 but during the day 90 my ac been having a hard time keeping up need to take it apart and clean it.